enable debug

src/main/resources/application.conf

@@ -1,6 +1,28 @@
 akka {
   event-handlers = ["akka.event.slf4j.Slf4jEventHandler"]
   loglevel = "DEBUG"
+
+  log-dead-letters = 10
+  log-dead-letters-during-shutdown = on
+
+  # Log the complete configuration at INFO level when the actor system is started.
+  # This is useful when you are uncertain of what configuration is used.
+  log-config-on-start = off
+
+  actor {
+    debug {
+      # enable function of LoggingReceive, which is to log any received message at
+      receive = off
+      # enable DEBUG logging of all AutoReceiveMessages (Kill, PoisonPill et.c.)
+      autoreceive = on
+      # enable DEBUG logging of actor lifecycle changes
+      lifecycle = on
+      # enable DEBUG logging of all LoggingFSMs for events, transitions and timers
+      fsm = off
+      # enable DEBUG logging of subscription changes on the eventStream
+      event-stream = on
+    }
+  }
 }
 
 http {